70 citations · 260 across the 11 of their papers we have counts for
6 papers · 1 filter
Nonlinearity-induced corner states in a kagome lattice
K Prabith, Georgios Theocharis, Rajesh Chaunsali
Nonlinearity provides a powerful mechanism for controlling energy localization in structured dynamical systems. In this study, we investigate the emergence of nonlinearity-induced…
Edge States with Hidden Topology in Spinner Lattices
Udbhav Vishwakarma, Murthaza Irfan, Georgios Theocharis +1
Symmetries -- whether explicit, latent, or hidden -- are fundamental to understanding topological materials. This work introduces a prototypical spring-mass model that extends beyo…
Bulk-edge correspondence in the trimer Su-Schrieffer-Heeger model
Adamantios Anastasiadis, Georgios Styliaris, Rajesh Chaunsali +2
A remarkable feature of the trimer Su-Schrieffer-Heeger (SSH3) model is that it supports localized edge states. Although Zak's phase remains quantized for the case of a mirror-symm…
Topological state transfer in Kresling origami
Yasuhiro Miyazawa, Chun-Wei Chen, Rajesh Chaunsali +4
Topological mechanical metamaterials have been widely explored for their boundary states, which can be robustly isolated or transported in a controlled manner. However, such system…
Corner states in second-order mechanical topological insulator
Chun-Wei Chen, Rajesh Chaunsali, Johan Christensen +2
We numerically and experimentally study corner states in a continuous elastic plate with em-bedded bolts in a hexagonal pattern. While preserving C6 crystalline symmetry, the syste…
Self-induced topological transition in phononic crystals by nonlinearity management
Rajesh Chaunsali, Georgios Theocharis
A new design paradigm of topology has recently emerged to manipulate the flow of phonons. At its heart lies a topological transition to a nontrivial state with exotic properties. T…